layout/reftests/bugs/670442-1.html@a63d609f5ebe
layout/reftests/bugs/670442-1.html
Thu, 15 Jan 2015 15:55:04 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:55:04 +0100
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
- permissions
- -rw-r--r--
Back out 97036ab72558 which inappropriately compared turds to third parties.
1 <!DOCTYPE html>
2 <html>
3 <body>
4 <div>
5 <canvas id="c1" width="400" height="400"></canvas>
6 <canvas id="c2" width="400" height="400"></canvas>
7 </div>
8 <script type="text/javascript">
9 var canv1 = document.getElementById('c1');
10 var canv2 = document.getElementById('c2');
11 var ctx1 = canv1.getContext('2d');
12 var ctx2 = canv2.getContext('2d');
14 ctx1.strokeStyle = '#FF0000';
15 ctx1.moveTo(10, 10);
16 ctx1.lineTo(390, 390);
17 ctx1.stroke();
19 function doTest()
20 {
21 // Save img data
22 var imgData = ctx1.getImageData(0, 0, canv1.width, canv1.height);
24 // Resize canvas - seems to cause the bug
25 canv1.width = 0;
26 canv1.height = 0;
27 canv1.width = 400;
28 canv1.height = 400;
30 // Put image data from ctx1 to ctx2
31 ctx2.putImageData(imgData, 0, 0);
33 // Draw canvas2 on canvas1
34 ctx1.drawImage(canv2, 0, 0);
35 };
37 doTest();
38 doTest();
39 </script>
40 </body>
41 </html>
